Selector for phonographs



Feb. 25, 1941. L. P. MOCK ET AL SELECTOR FGR PHONOGRAPHS Filed July 22,1959 4 Sheets-Sheet l lm emons Lloyd Moo/r & Alvin L. Car/son WWZTKMMFeb. 25, 1941. 1.. P. MOCK ETAL SELECTOR FOR PHONOGRAPHS Filed July 22,1939 4 Sheets$h'eet 2 IZIIIIIIIIIA a@ I Y Mrentors: Lloyd P Mack 15 4/107 L. Car/Jan WMW Attorney Feb. 25, 1941.

L. P. MOCK ET AL SELECTOR FOR PHONOGRAPHS Filed July 22, 1959 4Sheets-Sheet, 3

Fla. /3

WWW

Attorney Feb. 25, 194] 1.. P. MOCK ET AL SELECTO FOR PHONOGRAPHS 4Sheets-Sheet 4 2 0 a mMc e v A m M n a m n Patented Feb. 25, 19412,233,026

UNITED STATES PATENT OFFICE 2,233,026 SELECTOR FOR. PHONOGRAPHS Lloyd P.Mock and L. Carlson, Denver, 0010. Application July 22, 1939, Serial No.285,874 8 Claims. (Cl. 177-453) This invention relates to improvementsin pro- Figure 4 is a section taken on line 4-4, Figure gram selectorsfor phonographs and similar musi- 2, and shows the impulse switchmechanism, the cal devices. friction brake and the normally open switchem Automatic phonographs and other musical inployed for returning theselector switch to inop- 5 struments are quite popular in cafes andother erative position; -5 places, but in most cases the starting of thema- Figure 5 is a section taken on line 5-5, Figure chine and theselection of the program must take 2, and shows the relative positionsof the friction place at the instrument itself which greatly rebrake andthe spring by means of which the duces the value of the instrument, fromthe point parts are returned to normal position; of view of a revenueproducer. Figure 6 isa section taken on line 6 -6, Figure In cafes andother places where such instru- 7, and shows a portion of the step bystep mechaments are employed, the patrons are usually nism and selectorswitch;

seated at tables or in booths far removed from Figure 7 is a sectiontaxen on line l--l, Figthe instrument and the instrument would thereure6; M fore be employed to a greater extent if it couldbe Figure B is asection taken on line l--i, Fig-' started and the program, selected fromany place ure 9; j t where the patrons ar seated, Figure 9 is a planview looking in the direction It is an object of this invention toproduce a of arrow 9, in Figure 6;

mechanism or a system of control by means of Figure 10 is a View partlyin plan and partly in 2 which automatic phonographs and other musicalsection, taken along line lt-Jll, Figure 11, and instruments can bestarted and their programs shows the arrangement of the mechanism forselected from a plurality of difierent points reoperating the programselector keys;

moved as far as necessary from the instrument. Figure 11 is a sectiontaken on line ill-l i, Fig- Another object of this invention is toproduce a ure 10; 2 control system of the type mentioned which shallFigure 12 is a diagrammatic View Showin a require the minimum number ofconductors from rectilinear arrangement of magnets and program thevarious stations to the machine. selector buttons;

Another object of the invention is to produce a Figure 13 i a sectionalview through a re system which is operable on a low voltage circuit,which is employed in the system;

as, for example, a twelve volt alternating current Figure 14 is acircuit diagram s o the circuit and in which the current for operatingthe various elements in erc n t p r rm th selector does not have totravel to the different desired operations; and stations and whichtherefore will not be subject igu e 15 is a diagra S owi he man er in tothe resistance losses that would otherwise whi h he relay is nne ted inthe ircuit so a occur. to maintain the highest possible voltage at the35 The above and other objects that may become instrument.

apparent as this description proceeds are attained ut a ic p o g p s dot er cal inby means of a construction and an arrangement struments, aswell as different types of automatic of parts that will now be'describedin detail, and vending ma hin s are el r lly operated and for thispurpose reference will be had to the acn Figure 14, t e motor WhichOperates the incompanying drawings in which the several parts strumenthas been diagrammat a y S wn and that cooperate to form the system, aswell as the d s ated by reference er 6. Such inrelationship of theseparts to each other has been truments are p vid d with means forselecting shown. I any one-of a group of records or musical compo- Inthe drawings: I I sitions or of any one of a group of articles to beFigure 1 represents a front elevation of a selecdispensed which meansincludes pushbuttons ll. tor switch which is positioned at a stationfrom As an example of Su s e ts at ention is which the instrument is tobe controlled; directed to U. S. Letters Patent No. 2,002,236, of Figure2 is a. section taken on line 2--2, Fig- May 21, 1935, and to U. S.Letters Patent No ure 3; 1,595,241 of August 10, 1926. It is not thepur- Figure 3 is afront elevation, with parts broken pose of thisspecification to describe the mechaaway, showing in .a more or lessdiagrammatic nism of the auto t c phonographs of y manner thearrangement of the gear train by other automatic vending machine as suchmecharf means 01 which the speed of operation of the nisms are wellknown and understood, but only switch 15 controlled; such portions ofthe mechanism will be indicated cation.

' tric or mechanical type.

Machines of the type to which this invention relates are usually coincontrolled, but in the present description this feature has not beenshown as it does not form part of the present invention, but can beadded by any one skilled in this art without the exercise of a degree ofskill greater than that of an ordinary mechanic.

This machine will be described in connection with an automaticphonograph, although as above intimated, it is suitable for a variety ofother uses. Automatic phonographs of the type usually employed consistsof a machine having a turn table, a reproducer. arm either of the elec-Mecha'nism is provided for selecting any one of a number of records andthis mechanism includes a plurality of selector keys or buttons whichhave been designated by reference numeral I! in the drawings. After theselection has been made, a switch corresponding to the one designated byreference numeral I8 is closed by means of a coin, whereupon theinstrument starts operating and after the record has been played, theparts automatically return to inoperative position in readiness foranother selection and operation.

The instrument that forms the subject ofthis invention comprises animpulse producing switch constructed as shown in Figures 1 to5, which ispositioned in booths and at tables in different parts of the room. Thisimpulse producing mechanism is connected by electric wires to a selectorswitch constructed in the manner shown in Figures 6 to 9, inclusive, andthis switch mechanism is in turn connected with a plurality of magnetsarranged to operate the selector keys of the phonograph in the mannerindicated in Figures 10, 11 and 12.

The impulse producing mechanism by means of which the occupant of abooth or table may select a program and put the machine into operationcomprises a shaft l9 to the front end of which a perforated disk 26 isattached. An im pulse switch operating disk 2| is nonrotatably securedto the other end of shaft l9 and is provided with a plurality of teeth22, whose function and operation will appear as the descriptionproceeds. Disk 20 is provided with a plurality of openings 23 of whichtwelve have been shown in the example illustrated. Disk 20 is rigidlyconnected to the shaft. A gear wheel 24 is rotatably connected withshaft l9 and is frictionally engaged with the latter by means of aspring washer 25. The friction clutch arrangement thus produced assuresthat the parts will not be subjected to any breaking strains when thedisk 20 is moved to selecting position and that the return movement ofdisk 20 and the toothed wheel 22 will be retarded to the proper extentby the brake mechanism which will now be described. Gear 24 meshes witha pinion 26 on a shaft 21 which also carries a large gear 28 thatis inmesh with a pinion 28 on the end of shaft 30. Shaft 30 extends into abrake housing 3|, where it is non-' rotatably connected with a disk 32to which the arcuate brake members 33 are pivotally attached asindicated by numeral 34. When shaft 30 turns, the brake shoes 33 aremoved outwardly by centrifugal force and engage the inner surface of thecylindrical-wall of the brake housing 3|, thereby producing a retardingaction which limits the speed at which disk 20 can be returned by theaction of the spring 35 Attached to the supporting plate 36 thatsupports the brake housing 3| is a cylindrical spring housing 37 inwhich the helical spring 35 is located. One end of this spring is heldstationary by a pin 38 and the other one is attached to the shaft IS,the parts being so arranged that the spring tends to move the selectordisk 20 counterclockwise when viewed as in Figure 1. Numbers from one totwelve are painted on the surface of the supporting plate 39 in suchpositions as to be visible through openings 23 in a manner similar tothat employed with the ordinary dial telephones. A program is arrangedadjacent this switch, on which the various selections that can be playedby the machine are listed and given a number and if the patron desiresto select the record designated by number4, he inserts his finger inopening 23 through which number 4 is visible and turns the diskclockwise until his finger engages the stop 40 whereupon the disk isreleased and is returned to normal position by the spring 35. Disk 2| isprovided with twelve spaced teeth which have been designated byreference numeral 22. Disk 2| is also provided with a pin 4| whichengages a spring arm 42 when the dial or disk 20 returns to normalposition. Arm 42 is part of a switch comprising a cooperating switchmember 43 and is urged to switch open position by the action of spring44 which normally holds it in engagement with pin 45. When disk 20 isrotated. clockwise when'viewed as in Figure 1, or counterclockwise whenviewed as in Figure 4, the teeth 22 engage the pivot detent 46 from theright (Fig. 4) and turn it about its pivot in opposition to the actionof spring 41, which spring is weak, although it has been indicated onthe drawings as being made of heavy material. Detent 46 is carried by apivot arm 48 whose end has an upwardly extending insulating member 49that engages the under surface of a spring switch .as in Figure 4,and'since the detent 46 is prevented from turning counterclockwise aboutits pivot due to stop 53 and since the teeth engage the. inclinedsurface 54 of the detent, the latter, including the arm 48, will moveupwardly and establish an electric connection between switch members and5|, whereby an electric current will flow through the magnet 52 andoperate the selector switch in a manner which will become more apparentwhen the mechanism of the selector switch is described.

In Figure 4 a battery 55 has been shown in two of the circuits and onepole of this battery has been shown as grounded at 56. These twobatteries, as well as the current supply for the en- Referring now toFigures 6 to 9, inclusive,

which illustrate the construction of the step by step mechanism and theselector/switch, reference numeral 51 represents a plate or base memberon which the parts are supported. This plate has a central bearing 58 inwhich shaft 59 is rotatably mounted. Another plate 60 is attached toplate 51 by means of screw BI and suitable spacers wheel' 83 whoseperiphery is provided with ratchet teeth 84. A clock spring 85 ispositioned in a housing 88 and has its ends attached to thehousing andto the shaft 58 in such a way that it tends to turn the ratchet disk 83in clockwise direction when viewed as in Figure 7. Cooperating stops 81and 88 are attached respectively to the ratchet disk and to thestationary plate 51 limiting the clockwise rotation due to the ac-' tionof the spring.

Referring now more particularly to Figure 7, it will be seen thattwomagnet coils 88 and 18 are attached to the plate 51. Iron cores 1|are mounted for reciprocation in the openings in magnets 88 and 18. Thecores 1| have axial openings 12 of different diameters so as to formashoulder 13 in each core. A spring 14 is positioned in the larger axialopening and has one end abutting the .shoulder 13 and the other endabutting the head 15 on the end of a wire link .18, whose upper end isprovided with an eye 11.

The springs 14 are comparatively weak, but are strong enough. to holdthe cores against the lower ends of the eye 11 when the magnets-aredeenergized. As soon as either magnet is energized, the core movesdownwardly compressing the spring 14 and then strikes the head 18'imparting to the latter a sudden" impact which assists in moving thestep by step mechanism or the release in a manner which will now.-b edescribed. From Figure 7 it will be notice'd that a lever 18 ispivotally attached to plate 51 by means of a pivot pin 18. A spring 88hasone end attached .to the lever 18 at a point above the pivot..'1 8and the other end attached to an adjustable'a'nchor 8|, which comprisesathreaded member that passes through an openingin' a bracket 82 and isprovided with a winged nut 83 which can be rotated for the purpose ofad,- justing the tension of this spring. Attention is called to the factthat although the spring 88 has been shown as made from .heavy springwire, this is done merely for convenience in showing the spring as thestrength of this spring is sufficient merely to move the lever 18 withits attached core 1| upwardly when the magnetis deenergized.

A link 84 connects the eye 11 of the core which is associated withmagnet 88 to themovable end of link 18 and therefore when this ma net isenergized, lever 18 will move counterclockwise about its pivot. A pawl85 is pivotally attached to lever 18 at .88 and' is normally heldagainst .a, stop 81 bythe action of a comparatively weak spring 88.This. pawl is so positioned that when lever 18 moves downwardly it willengag one of the ratchet teeth 84 and move the ratchet disk 83 throughan angle corresponding ,to the angular distance between the ratchetteeth. Stops 88 and 88 serve to limit the movement of lever 18' so thateach operation will rotate disk 83 through apredetermined angle. '-Asecond pawl which has been designated'by reference numeral 8| is pivotedto the lever 18 at theright of pivot 18, the pivotal connection beingdesig-v angular portion I88.

a source of current in the-manner which will be explained by referenceto Figure 14 and therefore whenever switch member 58 is moved anelectric impulse is produced which energizes magnet 8| and moves thelever 18 downwardly, thereby turning disk 83 a distance of one ratchettooth and when this lever-is released andmoves upwardly in response tothe action of spring 88, pawl 8| will rotate the disk 88 a similardistance so that for every complete oscillation of lever 18, the ratchetwheel moves an a ar distance equal to two ratchet teeth. When the disk83 is ratcheted in response to the impulses produced by the operation ofswitch members 58 and 5|, spring is tensioned and this spring is ofsufficient strength to return the parts to normal when pawl 8| is movedto inoperative position. For the purpose of releasing the ratchet disk,magnet 18 with its cooperating core 1| is provided. A link 84 connectsthe outer end of lever 85 with the eye 11 at the upper end of link 18,Lever 85 is pivoted at 88 and is urged upwardly by a spring 81. The freeend of lever 88 is bent upwardly when viewed as in Figure 'I so as toprovide a projection 88 that engages un- "derneath the pawl 8|.

by the action of sp qing 35. Another switch is also connected in serieswith magnet 18 as will appear as the descrifi tion proceeds. 4

,Referring now more particularly to Figures 8, 8 and 9, it will be seenthat a disk is attached tit the end ofshaft 58, preferably by means of aset'screw I88,- the purpose of the set screw being to permit convenientadjustment of the disk. A ring |8| encircles the disk 88 and is securedto and spaced from plate 88 by means of spacers I82 and bolts I88. RingI8I is prov-lded with a number of terminals I84 which serve to effectelectrical connections with the parts of the mechanism, but which, inthe present illustration, have not been shown as involved in the circuitconnections. Ring I8I also carries twelve contacts I85, each of whichcorresponds to one of the numbers on plate 38 that are visible throughthe openings 23 and which are connected to selector magnets in a mannerwhich will hereinafter appear. Attached to the disk 88 by means of aninsulating block I88 is a spring contact I81. The end of this contacthas a sharp An. anchor .I88 extends through an opening in block I88 andserves to hold-one end of a spring in a manner which will presentlyappear. A dashpot cylinder 8 is attached to the disk' 88 at one endby'means of apivot I I I. Slidably mounted in the dashpot is a piston orplunger II2 whose outer end is connected by means of a pivot pin 3 to aswitch arm Ill that is attached to the disk 88 by means of a pivot 5. Aspring 8 connects the pivot 3 with the anchor I88 and this spring is sotensioned that it will normally hold the parts in the position shown inFigure 9. The free end of switch member Ill is provided with a notch II1of a size that will receiveonefof the circular magnets I2 I contactsI05. A pin H8 is attached to the under surface of disk 99 and serves tomove a switch member II9 to switch opening position when the step bystep mechanism is released and returns to normal. Switch member II9cooperates with a similar switch member I20 and these two switch membersare connected in series with switch contacts 42 and 43 and also inseries with the release magnet I in a manner which will hereinafter moreclearly appear.

As has already been intimated, the ordinary automatic phonographs areprovided with selector buttons II that are pushed inwardly by theoperator for the purpose of selecting any one of the records with whichthe machine is equipped. The outer ends of these buttons are numberedand these numbers correspond to the numbers on the program in the samemanner as the numbers visible through openings 23 correspond with theprogram numbers. For the purpose of operating the selector buttons froma distance, have been provided, there being one magnet for each selectorbutton. In the embodiment illustrated, the selector buttons II have beenshown as arranged in a circle and magnets I2I have been arranged in acircle which surrounds the buttons. This arrangement can be varied tosuit the particular instrument, as some instruments have the selectorkeys or buttons arranged in a straight line, ,in which.

case the magnets I2I are also arranged in a straight line as shown inFigure 12. The metal plate I22 shown in Figure 11 canbe assumed as beingpart of the phonograph housing. The annular disk I23 to which themagnets I2I are attached is connected with the part I22 by a number ofbrackets I24. Associated with each magnet is an arm I25 to which a leverI20 -is attached by means of a pivotl2'l. Each magnet I2I has a coreI28, whose upper end is connected with one end of lever I26 by means ofa link I29. The free ends of levers I26 rest on the upper surface ofcircular flanges I30 carried by the pins I'I. Whenever any one of themagnets I2I is energized the corresponding core I28 will move upwardly,thereby forcing the corresponding pin II inwardly, whereupon certaincircuit connections are made that move theselected record into operatingposition.

We will now consider that the switch contacts I are numberedsuccessively from I to I2 in a counter-clockwise direction, when viewedas in Figure 9, and that this numbering corresponds to numbers visiblethrough theopenings 23 in Figure 1. Let us also assume that magnets I2Iare numbered consecutively in a counterclockwise direction from. I toI2. If, for example, the patron desires to select the record indicatedby number 3' on his program, he will insert his finger in the hole 23,through which number 3 is visible and move the dial clockwise until hisfinger engages stop 40, whereupon the dial is released. When the dial isreleased, the impulse wheel 2I will start moving in a clockwisedirection when viewed as in Figure 4, and before it comes to rest itwill establish circuit connections between switch members 50 and 5Ithree times, whereupon switch member II4 will move the distance betweenits neutral position and a position in which the contact I05, which hasbeen designated also by numeral 3, is opposite the opening 1. When disk2I reaches its normal position, it closes the switch comprising members42 and 43, thereby establishing a circuit connection with the releasemagnet 10, whereupon the step by step mechanism is released permittingspring '65 to return the parts to normal position. When disk 99 beginsits return rotation, the pin I05 which corresponds to the numberselected, will enter the notch II! and this makes it necessary for theswitch contact II4 to turn counterclockwise about its pivot II5 whichmovement forces plunger II2 into the cylinder H0 and during this motionthe end of switch contact II4 comes into engagement with the switchmember I01, thereby establishing an electric connection which sends acurrent through the conductor which connects contact 3 with magnet 3,whereupon the magnet is energized and operates the lever 26 to push theselector button I! inwardly. vSince the contact I05 enters aconsiderable distance into notch I, switch member I I4 must continue torotate counterclockwise until pivot II3 has passed to the other side ofa line joining pivots III and H5 and shortly after this position isreached contact is broken between H4 and I0! and therefore no currentwill pass when switch member II4 engages contacts 2 and I. The functionof the dash pot is to slow up the return movement of disk 99. The detentrelease magnet I0 is in series with the switch comprising contacts 43and 43 which isopen when disk 2| is moved away from normal orinoperative position (see Fig. 4) and when the impulse device isoperating, and in series with switch comprising contacts H9 and I20which closes when disk 99 moves away from inoperative position. It willtherefore be seen that the detent is released as soon as disk 2I returnsto the position shown in Fig. 13. When the selector switch returns tothe position shown in Figure 9, the switch formed by contacts I I9 andI20 is moved to open position, which makes it impossible to operate therelease mechanism unless the step by step mechanism has already operatedsince this switch is in series with the release magnet 10. When therelease mechanism operates, the downwardly extending projection I3Iengages and momentarily closes the switch whose two contacts have beendesignated by reference numerals I32 and I33. This switch corresponds tothe coin controlled switch in the usual mechanism and starts theoperation of the electric motor I6 by momentarily closing switch I8. Theexact mechanism within the apparatus itself has not been shown as itseems to have no direct bearing on the improved construction that formsthe subject matter of this invention.

' In Figure 13 a relay mechanism has been illustrated, the parts ofwhich have been shown in section. This relay consists of a tube I34 tothe ends of which magnet coils I35 and I36 are attached. A soft ironcore I3'I is slidably mounted in tube I34 and the latter is providedwith an opening through one side for the reception of a spring tongueI38 which forms part of a switch .mechanism that will presently bedescribed. A spacer I39 of insulating material surrounds the tube I34and is positioned between the magnet coils. Metal strips I40 and MI haveopenings throgh which the tube I34 extends and these strips arepositioned between the magnet coils and the spacer I39 and clamped inposition by the crimping of the outer ends of tube I34. Supported by themembers I40 and MI is aswitch mechanism comprising the central springcontactmember I30 and two switch members I42 and I 43, one of which islocated on either side of member I30, the several contact members beinends of switch members I43 when the core moves in response to theenergization of either one of the magnets. The parts are so positionedthat when neither of the magnets are energized, both switches willremain open.

The relay described above is connected in the circuit between switches5|); 5|; 42, 43' and mag nets 6!! and III in the manner shown in Figure15. A separate circuit is run from the power line or the transformer 55ato' contact 1138 in the manner shown. The relay serves as a booster inthe usual way and is useful particularly when the impulse device ispositioned, a considerable distance from the selector switch because itobviates' the excessive voltage drop that otherwise takes place due tothe fact that all of the current for operating the mechanism must flowthrough the two switches on the impulse device. With the arrangementshown in Figure 15, the current controlled by switches (50, 5i) and (42,43) is small compared to the current necessary to operate the selectorswitch and key operating magnets and since the relay can be located inclose proximity to the latter devices, the voltag drop can be maintainedsmall.

From the above description, when taken in connection with the drawings,it will be apparent that the mechanism and the system here described isespecially well adapted for use in connection with automatic phonographsand other musical instruments which, by the appli-- cation of thismechanism, can readily be controlled from a distance and in this wayhave their usefulness greatly improved.

In the foregoing part of this specification, attention has been calledto lthe fact that the use of an' automatic phonograph is merely for thepurpose of convenience, as this mechanism is equally well adapted forother purposes and can readily be employed in connection with vendingmachines by means of which an attendant can deliver to a customer anyone of a group of articles, as, for example, cigars or cigarets, or anyother vendable merchandise. v In an automatic phonograph of the typereferred to in the specification, means is provided for selecting arecord and for placing the same on a turn table, andit is evident thatthe same, or similar means, can 'be employed for delivering an articleso selected to a chute or other discharge opening, thereby performingthe function of an automatically controlled vending machine.

It is evident that various modifications can be made in the apparatusillustrated and described. and this invention is intended to cover anyap-' paratus shown and described and also any colorable variationsthereof.

Having described the invention what is claimed as new is:

- 1. In a selectively operated device having a plurality of selectorkeys, and an operating motor, means for effecting a selection and forstarting the operation from a distance, comprising in combination, a.device for producing a predetermined number of electrical impulses, aselector switch device, spring means for urging the selector switch tonormal position, means for operating the selector switch in. oppositionto the action of the spring comprising'a step by step mechanism, meansfor operating the step by step mechanism comprising an electromagnetconnected in series with the electric impulse device, a key settingelectromagnet operatively associated with each selector key, meanscomprising the selector switch for energizing anyone of the selectormagnets, means comprising a switch operated by the return of the impulsedevice to normal and an electromagnet energized by said last namedswitch and operatively connected with the step by step mechanism forreturning the step by step mechanism and the selector switch to normalposition, and means for starting the operating motor immediately afterthe selector key has been actuated.

2. In a selectively operated device having a plurality of selector keys,means for effecting a selection and for starting the mechanism from adistance, comprising incombination, an electromagnet associated witheach selector key,

means operated by the energization of the electromagnet for actuatingthe corresponding selector key, a selector switch having terminals inelectrical connection with the electromagnets, means comprising anelectromagnetically operated step by step mechanism and the selectorswitch foreifecting an electrical connection between a source ofelectric current and any one of the electromagnets, resilient means forurging the step by step mechanism and the selector switch to inoperativeposition, a detent associated with the step by step mechanism'forresisting the force tending to move it to inoperative position, meanscomprising an electromagnet for releasing the detent, a device forproducing a predetermined number of electrical impulses comprising anormally open switch in series with the operating magnet of the step bystep mechanism, a movable operating member urged in one 3. In aselectively operated device having a plurality of selector keys andanoperatingmotor, means for efiectinga selection and for starting themechanism from a distance, comprising in combination, a device forproducing a predetermined number of electrical impulses, a selectorswitch mechanism comprising an electromagnet in series with the impulsedevice, a step by step mechanism responsive to the energization of saidmeans for yieldingly resisting the movement of the selector switch awayfrom inoperative position and for returning it to inoperative position,a detent mechanism associated with the step by step mechanism forresisting return movement of the selector switch, electromagnetic meansfor releasing the detent, a normally closed switch associated with theimpulse producing device, said last named switch being biased to openposition, means for closing the last mentioned switch when the impulsedevice has functioned, said switch being in series with theelectromagnetic detent release of the selector switch, an electromagnetassociated with each selector key, the

electromagnet for operating the selector switch, I

selector switch mechanism having a contact one or the last namedelectromagnets, means responsive to the energization of any of the lastmentioned electromagnets for moving the corresponding selector key tooperative position,'

and means operated by the return of the selector switch mechanism toinoperative position for initiating the operation of the motor.

4. In a selectively operated device having a plurality of selector keysand an operating motor, means for efiecting a selection and for startingthe motor from a distance, comprising in combination, a device forproducing a predetermined number of electrical impulses, a selectorswitch device, spring means for urging the selector switch to normalposition, means for operating the selector switch in opposition to theaction the spring comprising a step by step mechanism, means foroperating the step by step mechanism comprising an electromagnetconnected in closing the normally open switch when the 1111- for movingthe switch pulse device returns to normal, means for opening thenormally closed switch when the selector switch returns tonorm'alposition, the selector switch having a contact corresponding --to eachkey, operating electromagnet,:aconductor connecting each contact withone of the last mentioned electromagnets and means for initiating theoperation of the motor when the release magnet has functioned.

5. In a selectively operated mechanism haying a plurality of selectorkeys and an operating motor, means for effecting a selection and forstarting the motor comprising, an electromagnet associated with each keyfor moving the latter when the electromagnet is energized, a mechanismfor selectively energizing one of said magnets comprising, a selectorswitch having a plurality of spaced contacts, means for connecting eachcontact in series with one of said electromagnets, a selector switchelement mounted for movement along the contacts, spring means for urgingsaid element to inoperative position, means comprising a step by stepmechanism operatively associated with the selector switch element intoelectrical engagement with a selected contact, a detent for holding theswitch element in opposition to the action of the spring,means'comprising an electromagnet for actuating the step by stepmechanism, an electric impulse producing device having a normally openswitch in series with the last named electromagnet, means comprising anelecti'omagnet operatively associated with the detent for releasing thesame, a normally closed switch associated with the impulse device, meansfor opening said last named switch when the impulse device is moved fromnormal position and for closing it when the impulse producing mechanismreturns to normal position, a normally open switch associated with theselector switch, 'said last named switches being'biased to closed and'open position respectively,- means for moving the last mentioned switchto openposi tion when the selector switch returns to normal position,the last two named switches being in series with the detent releasemagnet, and means comprising a normally open switch associated with thedetent release device for starting the motor when the detent isreleased.

6. In a selectively operated device having a plurality of selector keysand a motor, means for starting and controlling the operation from adistance comprising in combination, a manually controlled device forproducing a predetermined number of electrical impulses, a selectorswitch comprising an electromagnet connected in series with the impulsedevice, a step by step selector switch operated by the electromagnet,said switch having a plurality of contacts, an electromagnet operativelyassociated with each selector key, means comprising a conductor forconnecting each contact with one of the last mentioned electromagnetsfor energizing the same to operate the corresponding selector key, meanscomprising an electromagnet controlled by the operation of the impulsedevice for releasing the selector switchv device, and means comprisingthe release mechanism for initiating the operation of the motor.

'7. In a selectively operated mechanism having a plurality of selectorkeys and a motor, means for operating any one of the selector keys andfor starting the motor from a distance, comprising in combination, anelectromagnet associated with each selector key, means for operatingthe,corresponding key whenever an electromagnet is energized, a selectorswitch having separate contacts, each connected to a selector magnet,and a movable switch member for eflecting an electrical connection withany one of the contacts, means for moving the switch member intooperative position relative to a selected contact, said means comprisinga step by step mechanism ineluding an electromagnet, means for returningthe mechanism to inoperative position comprising a spring, meanscomprising a pawl detent for holding the parts against the action of thespring, meanscomprising an electromagnet operatively associated with thepawl detent for releasing it to permit the selector switch to return tonormal position, means comprising a dashpot for retarding the returnmovement of the selector switch after its release, means for producing apredetermined number of electric impulses comprising a normally open'switch connected in series with the electromagnet that operates the stepby step mechanism, means for closing said last named switch apredetermined number of times, a normally closed switch associated withthe impulse device, a normally open switch associated with the selectorswitch, the last two named switches being biased toclosed and openposition respectively and connected in series with the pawl detentrelease magnet, means for closing the normally closed switch when theimpulse mechanism has functioned, means for opening the normally openswitch when the selector switch has functioned, whereby the releasemagnet can operate only after the desired number of impulses have beensent to the step by step mechanism, and means operated by the pawlrelease magnet and after it has functioned for starting the motor.

8. In a selectively operated mechanism having a plurality of selectorkeys and a motor, means for eflecting a selection, and means comprisinga normally open switch foi'wtarting the motorafter a selection has beeneitected, comprising in means comprising,

combination, a device for producing 'aypredetermined number 'ofelectrical impulses, an electromagnet operatively associated with eachselector means operatively connected with the magnets andthe impulsedevice for selectively energizing any one of the selector magnets, saida support, a shaft rotatably a ratchet wheel attached to pivoted to thesupport, pawl mounted thereon, the shaft, a lever mechanism carriedmeans comprising a spring operatively associated with the lever forholding it in a predetermined normal position, means comprising anelectromagnet and a movable armature operatively associated. with thelever for moving the lever in opposition to the action of the spring;one of the pawls carried by the lever serving as a detent, meanscomprising a release magnet for moving the detent to inoperativeposition, means comprising a spring by the lever for rotating the =shaftwhen the lever oscillates,

I shaft.

connected with the shaft for urging it to rotate in a. direction opposedto the action of the detent and for returning a. ring surrounding thedisk, a plurality -of switch contacts on the ring, a pivoted switchelement carried by the disk, a switch contact alsocarried by the disk.and normally disconnected from the switch element, spring meansconnected with the switch element for urging-it in one direction, andretarding means connected with the switch element for retarding itsmovement in opposition to the spring, said switch element servingv asmeans to establish electrical connection" between a selected contact onthe I contact carried by the disk when the latter rotates in response tothe spring carried by the ALVIN LiCARLSON. LLOYD P; MOCK.

it to'normal position when re-, leased by the detent, a disk carried bythe shaft,

ring'and the switch

